Nailing-machine



(No Model.) 4 Sheets-Sheet 1.1 -S. W. ROBINSON. NAILING MACHINE N0. 591,658. Patented Oct. 12,1897.

guesses: as

[W l 4 by V L7 wa mmmg Jlll'or .8.

4 Sheets-Sheet 3.

(No Model S. W. ROBINSON. NAILING MACHINE.

No. 591,658. Patented Oct. 12,1897

nun-1 "n.

u lhvenlor:

b'ldlman Wfiobz'nson,

(No Model.) 4 Sheets-Sheet 4.

S. W. ROBINSON.

NAILING MACHINE.

N0. 591,658. Patented Oct. 12,1897.

sl zllbnmlWflnbinsoi, wimgv UNITED STATES PATENT OFFICE.

STILLMAN XV. ROBINSON, OF COLUMBUS, OHIO, ASSIGNOR TO THE WYIRE GRIP FASTENING COMPANY, OF BOSTON, MASSACHUSETTS.

NAlLlNG-MACHINE.

SPECIFICATION forming part of Letters Patent No. 591,658, dated October 12, 1897.

Application filed March 2 5, 1 8 9 7.

To all whom it may concern.-

Be it known that I, STILLMAN W. ROBIN- SON, of Columbus, county of Franklim'St-ate of Ohio, have invented an Improvement in Nailing-Machines, of which the following description, in connection with the accompanying drawings, is a specification, like letters and figures on the drawings representing like parts.

This invention has for its object the production of a novel machine for making nails or fastenings from a nail-strip and driving them as made.

One part of my invention in nailing-machines consists of a plate provided with a pointing-quill having a nail-strip passage and a driver-passage, combined with a pivoted swing-plate provided with a cutting or pointing tool and a suitable means to actuate said swing-plate, substantially as described; also, of a plate provided with a pointingquill having a nail-strip passage and a driverpassage, combined with a pivoted swing-plate provided with a cutting or pointing tool and having a cam-slot, and a carrier-plate having a stud entering said cam-slot, substantially as described; also, of a plate provided with a pointing-quill having a nail-strip passage and a driver-passage, combined with a pivoted swing-plate provided with a cutting or pointing tool and having a cam-slot, and a carrier-plate having a stud entering said camslot, having two shoulders between its ends to impart to said carrier-block intermittingly reciprocating motion, substantially as will be described.

The particular features in which the invention consists will be hereinafter fully described, and indicated in the claims at the end of this specification.

Figure 1, in front elevation, shows a sufficient portion of a nailing-machine with my improvements added to enable my invention to be understood. Fig. 2 shows part of the nail-strip-feeding mechanism; Fig. 3,'the adjusting device for determining the length of strip to be fed to thus make a nail of the desired length. Fig. 4 shows a right-hand side elevation of the machine represented in Fig. 1. Fig. 4 is a face view of the carrier-plate and its grooved block. Fig. 4 is a top or Serial No. 629,169. (No model.)

plan view thereof showing the eccentric for adjusting the position of said block. Fig. 4 shows detached the pin which constitutes a pivot for said block. Fig. 4 is a face view' Fig. 4 is a of the auxiliary cutting-block. plan view of the short link or block Fig. 5 shows the top plate detached. Fig. 6 shows the nose-plate detached and in top view. Fig. 7 shows the carrier-plate mounted on the noseplate. Fig. 8 shows the same parts with'the swingplate in its other extreme position. Fig. 9 shows the swing-plate mounted on'the carrier-plate, the swing-plate occupying its normal position, with the pointing-quill in its position to be actuated to nick or chip the strip in the formation of the point. Fig. 10 shows the swing-plate in edge view, with its attached presser-block. Fig. 11 shows said presser-block detached in two views. Fig. 12 shows end views and side elevation of the pointing-quill. Fig. 12 shows a nail-strip nicked as it will be in practice before it is cut off in the formation of a nail. Fig. 13, in top view, shows a modified form of top plate. Fig. 14 shows a modified form of nose-plate. Fig. 15 shows the carrier-plate mounted on the nose-plate. Figs. 16 and 17 show a modified formof swing-plate mounted above the carrier-plate and in two different views. Fig. 18 shows an edge view of the front portion of the swing-plate, with its connected presserblock; and Figs. 19 and 20 show two different views of the presser-block. Figs. 21, 22, and 23 show different views of the pointingquill.

The framework A of the main head, in practice mounted on a suitable column A, has bearings for the main shaft A provided with an eccentric A a ratchet-wheel A and a toecam A to act on a block A secured to and adapted to lift the driver-bar A provided with a driver A This driver-bar as soon as the toe of the said cam lifts and passes The eccentric A is embraced by an eccen tric-strap at the upper end of the lever O, having a hub C,which embraces a pin Oimounted in arms of a link C pivotally mounted on a horizontal pin 0 fixed in suitable ears projecting from the head A.

The lower end of the lever O has a pin or stud G on which is fitted loosely the hub 0 (see Fig. i) at one end of a short link or block 0 the opposite end of said link having a second hub c bored at right angles to the bore in the hub c, said hub c embracing and sliding freely on a stud c rising from an ear 0 of a swing-plate (J to be described.

The link 0 and the pins or studs with which it is connected form a double sliding joint, and as the said lever is vibrated on its pivot 0 in the link 0 the swing-plate is moved in a plane at right angles to the main shaft A by an easy link motion.

The nail-strip a, wound in the form of a roll or coil, is sustained by a suitable spool a, mounted on the end of an adjustable arm a secured to the stud B The end of the nail strip is led through a suitable guide a and thence between the face of a feed-wheel a and the side of a wheel a (See Fig. 1.)

The pressure of the wheel a toward the feed-wheel to gage the force with which the nail-strip may be pinched will be controlled by a spring a, acted upon by a screw a. The feed-wheel is mounted loosely on the stud (3 and has a sleeve-hub provided with a wheel to", having teeth which are adapted to be engaged by a pawl a mounted loosely on the pin or stud C the latter pin or stud in its movements with the link G causing said pawl to' be moved to turn the feed-wheel. The extent of the movement of the feed-wheel by said pawl may be altered as desired by turning about the stud C the feed-regulating lever b, it having a pawl-controlling shield b, on which rides one edge 2 of the pawl, and by adjusting the position of this shield 77 about said wheel a the pawl in its'movement may engage the teeth of said wheel sooner or later and so move the feed-wheel for a greater or less distance, according to the length of nail desired for the work being nailed. The lever has a spring-pressed pin b which, by its engagement with the teeth of a sector b locks the said lever in any position in which it may be left.

7 Extended from the frame is a screw U, (see Fig. 2,) on which is an adjustable stop 6 and a second one 11 which may be struck by a projection 3 of the lever 11, the position of the said stop b on said screw determining the length of the shortest nail to be used, while the stop 11 is to be adjusted for the longest nail. After leaving the feed-wheel the nailstrip, of whatever cross-section, is led into the orifice (Z of the pointing-quill D, it having also a driver-passage d, the lower end of said quill below the top plate D, on which it is secured, being slabbed off, as shown in Fig. 12, to leave a secant surface in which may move the cutting end of the cutting'or pointing tool D the secant cut exposing the strippassage. The top plate D is securely attached to the end of the main head of the machine by suitable bolts 61 and g and extended downwardly from it are two steel studs d d. l

The stud d constitutes a fulcrum for th swing-plate 0 (shown best in Figs. 8, 9, and 10,) it carrying the cutting or pointing tool D said tool being held between a shoulder of the swing-plate and a clamping-block d pivoted to the swing-plate at 01 said block being acted upon by a suitable adjusting device d shown as a screw. The cutting-tool is held up to its work by a screw (1 acting against its rear end. This swing-plate has attached to it by a suitable screw (1 at the front side of the pointing-tool a presser-block (Z which acts against one edge of the nailstrip to hold it properly in the strip-groove of the said pointing-quill preparatory and while the cutting-tool is acting to cut away a portion of the strip and leave a notch preparatory to the formation of a nail-point. This swing-plate has a cam-slot E. Directly beneath this swing-plate I place a carrierplate F, it turning freely about the stud 01, depending from the top plate.

The carrier-plate has extended above it a steel stud F, shown as rectangular in crosssection, it entering the cam-slot E of the swing-plate, the said carrier-plate deriving its motion from the cam of the swing-plate. When the swing-plate is in its position (see Fig. 9) to permit the nail-strip to be fed into the pointing-quill, the stud F stands in the right-hand end of the cam-slot. Now when the swing-plate is moved to cause the pointing-tool to cut, the shoulder e of the cam-slot acts againstthe said stud and swings the carrier-plate with it in the same direction, but

for a limited distance.

When the reverse motion of the swingplate takes place, it starts and has a limited amount of movement in the left-hand end of the cam-slot, and then the second shoulder e of the cam-slot meets the said stud, and thereafter the swing-plate moves the camplate with it for a limited distance and then drops it while the swing-plate returns to its normal or starting point. This carrier-plate is provided with a grooved block 6 (see Figs. 8 and 49,) it having a driver-passage c and at its upper end a lip 6 which overlaps the upper end a of an auxiliary cutting-block e mounted on the nose-plate G.

The grooved block e is in Fig. at shown as attached by a suitable screw e to an arm a pivoted to the carrier-block at one end by may be turned when desired to effect any nice adjustments of the block e This eccentric in this embodiment of my invention is shown as clamped in a split end of the arm 6 by a clamp-screwf. The two studs (Z and (1 also enter holes f and f in the nose-plate G, said plate being provided at its under side with any usual or suitable nose-tube g.

At one side of the nose-plate is an upright lug or car g, provided with two threaded holes g for the reception of two screws 9 which are extended through a suitable flange g on the main head-frame, (see Fig. 1,) said screws also passing through the top plate of the working head and serving as an additional means to not only connect -the top plate at the main head, but also the said nose-plate to the top plate.

The auxiliary cutting-block a has a driverpassage 4, and one edge of the said block is cut away to leave a shearing edge 5, against which the stripis carried, it having previously had cut from it by the tool D a portion at the edge to aid in forming a point.

Fig. 12 shows the nail-strip as it will appear when most of the cuts are made, and said strip has at its lower end a point 6, and above said end it has a second like notch '7, which, as before said, aids in forming the point of the next nail. Now in this condition the carrier-plate will be swung in the direction to carry the nail toward the driverpassage of the auxiliary cutting-block, and in this movement the nail-strip will be cut off in the line :0 and at the same time or immediately after the portion of the strip to make the nail next to be driven will have cut from its edge between its own point 6 and the previously formed point above it 7 a space 8 to thus form the body of the nail and leave a head 9 for the nail, the severing of the strip transversely completing the point above it for the succeeding nail. The nail thus cut off from the strip is by a further movement of the carrier-block brought into such position with relation to the drivergroove 4 in the auxiliary cutting-block e as to enable the driver to meet the upper end or head of the nail or fastening, drive it out through the nose-tube g, the head of the nail in this further lateral motion of the carrierblock and its arm resting on and traveling over the upper end of the said auxiliary cutting-block.

By providing the auxiliary cutting-block with a shearing edge, as described, which may be of any desired curve or angle, it is possible to so cut into the edge of the thin metallic strip used as to gradually remove therefrom a portion, thus materiallylessening the force required for removing the chip.

In order to hold the arm 6 up firmlyin place during the time that it is cutting and moving the nail, as stated, I have provided the'nose with a bearing-plate h, it being held in place by a suitable screw h.

Sheet 4: Figs. 13 to 23 show a modified form of my invention. In I said figures the top plate D and the swing-plate are substantially the same as hereinbefore described, but the shape of the nose-plate G and of the carrier-plate F are somewhat modified. For instance, the nose-plate presents the upper end of the nose-tube with only a hole g for both the nail and the driver and the carrier plate has a steel carrier-tube f held supported by a screw f, said tube having a hole f, in which is fed the end of the wire, a round or rectangular corrugated wire, and then by the movement of the carrier through the swing-plate, as described, the tube coopcrating with the lower end of the pointingquill D cuts off the wire for the nail and puts the tube f, containing the nail, in line with the descending driver, letting the driver act on and drive the nail from the carriertube and nose-plate. In said Sheet 4 (F represents the-pressure-block.

Having described my invention, what I claim, an d desire to secure by Letters Patent, 1s-

1. In a nailing-machine, a pointing-quill having a nail-strip passage and a driver-passage, combined with a pivoted swing-plate provided with a cutting-tool, and a suitable means to actuate said swingplate, substantially as described.

2. In a nailing-machine, a pointing-quill having a nail-strip passage and a driver-passage, combined with a pivoted swing-plate provided with a cutting-tool, and a pressingblock to act on the nail-strip, substantially as described.

3. In a nailing-machine, a pointing-quill having a nail-strip passage and a driver-passage, combined with a pivoted swing-plate provided with a cutting-tool, and means to clamp and adjust the said cutting-tool on or with relation to said plate, substantially as described. 1

4. In a nailing-machine, a fixed pointingquill having a nail-strip passage and a driverpassage, combined with a pivoted swing-plate provided with a cutting-tool, and having a cam-slot and a carrier-plate-having a stud entering said cam-slot, substantially as described.

5. In a nailing-machine, a pointing-quill having a nail-strip passage and a driver-passage, a pivoted swing-plate provided witha cutting-tool, and having a cam-slot provided with two shoulders between its ends, combined with a carrierplate having a stud entering said cam-slot, whereby said swingplate is enabled to impart intermitting re ciprocating motion to said carrier-plate, substantially as described.

6. The pointing-quill having two slots, one for the driver and the other for the nail-strip, the lower end of the quill being slabbed off to leave a secant face in which is exposed the nail-strip groove, substantially as described.

7. A pointing quill or block having a nailvided with a nail-carrying block and a stud,

combined with a nose-plate having a nosetube, an auxiliary cutting-block, said nailcarrying block and auxiliary cutting-block being shaped substantially as described to form a head on the nail to be made as set forth.

9. In a nailing-machine, a pointing-quill having a nail-strip passage, a swing-plate having a pointing-tool cooperating with said pointing-quill to cut from the strip a chip to aid in forming the point of a nail, a carryingplate provided with a nail-carrying block having a combined nail and driver passage, and provided at its upper end with a lip, a nose-plate, an auxiliary cutting-block with which said nail-carrying block cooperates, said auxiliary cutting-block having a shearing edge, and means to actuate said carrierblock and said nail-carrying block to remove from the nail-strip a portion of its edge above the previously-formed point and leave at the upper end of the portion so last cut away a head, substantially as described.

10. In a machine of the class described, a carrying-plate, an arm provided with a nailcarrying block, a pin connecting said arm and block and an eccentric located at said pin to, by its adjustment, determine the exact position of the said nail-carrying block on the said carrying-plate, substantially as described.

11. A nose-plate provided with an auxiliary cutting-block, and a carrier-plate provided with an arm having a nail-carrying block, means to actuate said carrier-plate, combined with a bearing-plate to act on and hold the said arm and its nail-carrying block up firmly to the auxiliary cutting-block, substantially as described.

12. In a nailing-machine, a pointing-quill, means to hold it, a swing-plate provided with a cutting-tool, a lever, a pivoted link carrying the fulcrum for said lever, combined with a sliding block loosely connecting one end of said lever with said swing-plate, substantially as described.

I 18. In a nailing-machine the following instrumentalities, viz: a pointing quill or block having a wire-passage and a driver-passage and means for holding it, a driver, a swingplate containing a pointing-tool and a camslot, a carrier-plate having an attached nailcarrier piece and a stud working in said camslot, substantially as described.

14. In a nailing-machine, the following instrumentalities, viz: a feeding mechanism to feed a nail-strip intermittingly; a pointingquill to receive the end of the said nail-strip; a pointing-tool cooperating with said pointing-quill; means to move said pointing-tool to out into and remove a portion of said strip from one edge thereof to leave a notch at a rier-plate located below the pointing-tool and provided with a driver-passage and having a lip to overlap the upper end of said auxiliary cutting-block, and means to move said carrier-plate, whereby the notched edge of the strip is further cut away from the top of said notch upwardly for the length desired for the shank of said nail being made below its laterally-extended head, and the said strip is at the same time severed transversely above the head of the nail, leaving it in condition to be driven, substantially as described.

15. In a nailing-machine, the feeding mechanism to feed a nail-strip, a plate provided with a pointing-quill having a nail-strip passage and a driver-passage, combined with a. pivoted swing-plate provided with a cuttingtool, and suitable means to actuate said swingplate, substantially as described.

16. In a nailing-machine, feeding mechanism as described to feed a nail-strip, combined with a lever operated by an eccentric on the main shaft, and a pivoted link carrying the fulcrum of said lever, substantially as described.- A l 17 In a nailing-machine, feeding mechanism consisting of a feed-roll, a pressure-roll and a ratchet-roll, a lever, alink, and a click mounted upon the pivot of the said lever and link, as described, combined with a lever working between stops for controlling the length of the nail, substantially as described.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

STILLMAN WV. ROBINSON.

Witnesses:

BERTHA M. CARROLL, T. M. LIVESAYQ 

